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Finding the Third Proportional to 135,966 and 298,818

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Solution

The third proportional to 135,966 and 298,818 is: 656,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,966 : 298,818 = 298,818 : x
  2. Step 2: Convert to fraction form
    135,966/298,818 = 298,818/x
  3. Step 3: Cross multiply
    135,966x = 298,818 × 298,818
  4. Step 4: Simplify right side
    135,966x = 89,292,197,124
  5. Step 5: Solve for x
    x = 89,292,197,124/135,966
  6. Step 6: Final answer
    x = 656,724.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.